Ventilator.



R. curms.

VENTILATOR,

APPLICATION FILED APR.24| 19l5.

Patented Sept. 12, 1916.

.J rlTATES THOMAS R. CURTIS, OF GEN TER CITY, TEXAS.

VENTILATOR.

Application filed April 24, 1915.

To all whom it may concern Be it knownthat I, THOMAS R. CURTIS,

a citizen of the United States, residing at Center City, in the county of Mills and State of Texas, have invented certain new and useful Improvements in Ventilators; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to ventilators, and one of the principal objects of the invention is to provide a ventilator which will force fresh air into a room or building, and which can be turned so that the vitiated air will be drawn out of the room or building.

Another object of the invention is to provide a ventilator, having a vane pivoted thereto, and means for moving the vane upon its pivotal point so that it will operate to throw the ventilator out of the wind, so that a suction will be created to draw the vitiated air out of the room.

The foregoing and other objects may be attained by means of the construction illus-' trated in the accompanying drawing, in which the figure of the drawing is a vertical sectional view taken through the ventilator and showing the vane in elevation.

Referring to the. drawing, the numeral 1 designates the base of the ventilator having an annular flange 2 at its upper end, and said flange providing an opening therein to receive the lower end of the ventilator. Connected to the circular flange 2 is a guide ring 3, having an annular flange 4 extending around the same. The ventilator 5 is provided with an open lower end 6 having an outwardly extending flange 7, and connected at various points around the flange 7 are lugs 8. Mounted between each pair of lugs 8 is a roller 9 to bear upon the ring 3. A cover for the rollers is connected to the lower portion 6 of the ventilator, said cover comprising a ring 10 having a downwardly extending flange 11 which incloses the flange 1. A vane 12 is pivoted at 13 to a bracket 14 connected to the back end of the ventilator Specification of Letters Patent.

Patented Sept. 12, 1916.

Serial No. 23,741.

5. The arm 15 of the vane 12 is provided with a slot 16 through which a pin 17 extends, said pin being mounted upon an arm 18 extending through the ventilator, and connected to a bell-crank lever 19 by means of a pin 20 on the arm 18 extending through a slot 21 in the bell-crank lever. The bellcrank lever 19 is pivoted at 22 to a bracket 23 supported upon the inside of the ventilater 5, and'connected to one arm of the bell-crank lever 19 by a pivotal pin 24 is an operating lever 25.

When the ventilator is thrown out of the wind by means of the vane 12 occupying the position shown in the drawing, the vitiated air in the room will be drawn out by suction through the ventilator 5. When the vane 12 is thrown down into position to move the ventilator into alinement with the wind to admit fresh air to the room, the ventilator is moved upon the rollers '9, by means of the operating lever 25.

Various changes may be made in the details of construction without departing from the spirit and scope of the invention as defined in the claims.

What is claimed is 1. The combination with a revolving ventilator, a bracket exteriorly on said ventilator, a vane having an arm, said arm being pivotally mounted intermediate its ends in the outer end of the bracket, a slot in the lower end of the arm, a link mounted in said slot, the inner end of the link extending into the ventilator, a bracket in the ventilator, a bell crank pivotally connected to the bracket and connected to the inner end of the link, an operating lever connected to the free end of the bell crank for moving said vane in an operative position and rotating said ventilator.

2. A ventilator including the combination with a curve having an annular flange thereon, a vertical flange formed on said inner flange, a ventilator having rollers on its bottom mounted upon said flange, a casing covering said lower end of the ventilator.

3. A rotating ventilator, a bracket on said ventilator, the same pivotally secured to said In testimony whereof I afiix my signature in presence of two wltnesses.

THOMAS R. CURTIS.

ventilator, a bell crank pivotally mounted in said ventilator, a link connected at one end to one end of the vane, and its opposite end to one end of the bell crank, an operating lever connected to said bell crank for moving said vane into an operative position and for turning said ventilator.

WVitnesses:

E. B. ANDERSON, Mrs. H. G. BODKIN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C. 

